diff options
| -rw-r--r-- | target-m68k/cpu.h | 3 | ||||
| -rw-r--r-- | target-m68k/helper.c | 17 | ||||
| -rw-r--r-- | target-m68k/op_helper.c | 5 | ||||
| -rw-r--r-- | target-m68k/translate.c | 2 |
4 files changed, 21 insertions, 6 deletions
diff --git a/target-m68k/cpu.h b/target-m68k/cpu.h index 2f08a2cf8c..c0de97826d 100644 --- a/target-m68k/cpu.h +++ b/target-m68k/cpu.h @@ -158,7 +158,8 @@ M68kCPU *cpu_m68k_init(const char *cpu_model); is returned if the signal was handled by the virtual CPU. */ int cpu_m68k_signal_handler(int host_signum, void *pinfo, void *puc); -uint32_t cpu_m68k_flush_flags(CPUM68KState *env, int op); +uint32_t cpu_m68k_get_ccr(CPUM68KState *env); +void cpu_m68k_set_ccr(CPUM68KState *env, uint32_t); /* Instead of computing the condition codes after each m68k instruction, diff --git a/target-m68k/helper.c b/target-m68k/helper.c index d9ea830c67..1a54e6678b 100644 --- a/target-m68k/helper.c +++ b/target-m68k/helper.c @@ -132,7 +132,7 @@ void m68k_cpu_init_gdb(M68kCPU *cpu) /* TODO: Add [E]MAC registers. */ } -uint32_t cpu_m68k_flush_flags(CPUM68KState *env, int op) +static uint32_t cpu_m68k_flush_flags(CPUM68KState *env, int op) { int flags; uint32_t src; @@ -272,6 +272,18 @@ set_x: return flags; } +uint32_t cpu_m68k_get_ccr(CPUM68KState *env) +{ + return cpu_m68k_flush_flags(env, env->cc_op) | env->cc_x * CCF_X; +} + +void cpu_m68k_set_ccr(CPUM68KState *env, uint32_t val) +{ + env->cc_op = CC_OP_FLAGS; + env->cc_dest = val & 0xf; + env->cc_x = (val & CCF_X ? 1 : 0); +} + void HELPER(movec)(CPUM68KState *env, uint32_t reg, uint32_t val) { M68kCPU *cpu = m68k_env_get_cpu(env); @@ -466,7 +478,8 @@ uint32_t HELPER(addx_cc)(CPUM68KState *env, uint32_t op1, uint32_t op2) void HELPER(set_sr)(CPUM68KState *env, uint32_t val) { - env->sr = val & 0xffff; + env->sr = val & 0xffe0; + cpu_m68k_set_ccr(env, val); m68k_switch_sp(env); } diff --git a/target-m68k/op_helper.c b/target-m68k/op_helper.c index e41ae46498..af361776a6 100644 --- a/target-m68k/op_helper.c +++ b/target-m68k/op_helper.c @@ -63,9 +63,9 @@ static void do_rte(CPUM68KState *env) fmt = cpu_ldl_kernel(env, sp); env->pc = cpu_ldl_kernel(env, sp + 4); sp |= (fmt >> 28) & 3; - env->sr = fmt & 0xffff; env->aregs[7] = sp + 8; - m68k_switch_sp(env); + + helper_set_sr(env, fmt); } static void do_interrupt_all(CPUM68KState *env, int is_hw) @@ -112,6 +112,7 @@ static void do_interrupt_all(CPUM68KState *env, int is_hw) fmt |= 0x40000000; fmt |= vector << 16; fmt |= env->sr; + fmt |= cpu_m68k_get_ccr(env); env->sr |= SR_S; if (is_hw) { diff --git a/target-m68k/translate.c b/target-m68k/translate.c index cecd12c984..73f9e9f483 100644 --- a/target-m68k/translate.c +++ b/target-m68k/translate.c @@ -3145,7 +3145,7 @@ void m68k_cpu_dump_state(CPUState *cs, FILE *f, fprintf_function cpu_fprintf, i, u.l.upper, u.l.lower, *(double *)&u.d); } cpu_fprintf (f, "PC = %08x ", env->pc); - sr = env->sr | cpu_m68k_flush_flags(env, env->cc_op) | env->cc_x * CCF_X; + sr = env->sr | cpu_m68k_get_ccr(env); cpu_fprintf(f, "SR = %04x %c%c%c%c%c ", sr, (sr & CCF_X) ? 'X' : '-', (sr & CCF_N) ? 'N' : '-', (sr & CCF_Z) ? 'Z' : '-', (sr & CCF_V) ? 'V' : '-', (sr & CCF_C) ? 'C' : '-'); |